memtime.1

HTTP client端代码实现

.TH memtime 1 "Dec 2001"
.SH NAME
memtime - Show the time and memory used by a command
.SH SYNOPSIS
.B memtime
[\-t \fIperiod\fP] [\-e] [\-m \fImaxkilobytes\fP] [\-t \fImaxseconds\fP] \fIcommand\fP [\fIarg\fP...]
.SH DESCRIPTION
The \fImemtime\fP program invoke \fIcommand\fP with the parameters \fIarg\fP,
wait for its completion and print an estimation of the time and memory used by
\fIcommand\fP. In addition user can specify time and space limits by \fImaxseconds\fP 
and \fImaxkilobytes\fP to limit resources available for this process. 
.PP
.SH OPTIONS
memtime accept the following options:
.TP 8
.B \-t \fIperiod\fP
Print an estimation of the currently used resources every \fIperiod\fP seconds.
.TP 8
.B \-e
Echo \fIcommand\fP and \fIarg\fP.
.TP 8
.B \-m \fImaxkilobytes\fP
Memory limit for \fIcommand\fP. Implemented through RLIMIT mechanism.
.TP 8
.B \-c \fImaxcpuseconds\fP
User time limit for \fIcommand\fP. Implemented through RLIMIT mechanism.
.SH BUGS
The update period is only approximate.
.PP
The memory information is collected by sampling, and the precision might not
be good for commands with short execution time.
.SH COPYRIGHT
Copyright \(co 2000 by Johan Bengtsson
.PP
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions: The above copyright
notice and this permission notice shall be included in all copies or
substantial portions of the Software.
.PP
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
.SH AUTHOR
Johan Bengtsson <[e-mail]>
.PP
Memory and time restriction functionality added by
Juhan Ernits <[e-mail]> in December, 2001.